package threading;


class Counter {

    int count = 0;
    public synchronized void increase() {
        count++;
    }
}


public class Demo16 {
    private static Counter counter = new Counter();
    public static void main(String[] args) throws InterruptedException {

        Thread t1 =  new Thread(() -> {

            for (int i = 0; i <10000; i++) {
                counter.increase();
            }
        });
        Thread t2 =  new Thread(() -> {

            for (int i = 0; i <10000; i++) {
                counter.increase();
            }
        });
        t1.start();
        t2.start();

        t1.join();
        t2.join();
        System.out.println(counter.count);
    }
}
